ST Heating and Cooling

4.63 |135 Verified Ratings
Write a Review

ST Heating and Cooling

4.63 | 135 Verified Ratings
Write a Review


PO Box 8135
Langley Park, MD 20787
Your use of our services is governed by our Terms & Conditions

ST Heating and Cooling

ST Heating and Cooling believes in only delivering our very best. Tired of sweating out the summer in your home? Give us a call today and we can install anything from air conditioners for summer time to furnaces for the chilly winters.


Learn how HomeAdvisor screens and approves their pros.

Service Area

  • Silver Spring
  • Bethesda
  • Rockville
  • Hyattsville
  • Laurel
  • Bowie
  • Capitol Heights
  • Gaithersburg
  • Takoma Park
  • College Park
  • Lanham
  • Greenbelt
  • Potomac
  • Kensington
  • Temple Hills
  • Olney
  • Beltsville
  • Riverdale
  • District Heights
  • Chevy Chase
  • Savage
  • Mount Rainier
  • Bladensburg
  • Jessup
  • Glenn Dale
  • Clarksville
  • Highland
  • Brentwood
  • Spencerville
  • Suitland
  • See All >

Services Offered

Air Conditioning
  • Central A/C Repair
Heating & Furnace Systems
  • Heat Pump Repair
  • Gas Boiler or Radiator Heat Repair
  • Gas Furnace - Repair
  • Electric Furnace - Repair
  • Oil Furnace - Repair

Areas of Expertise

  • Central Air Conditioner Installation
  • Electric Furnace Installation
  • Gas Furnace Installation
  • Thermostat Repair
  • Oil Furnace Repair

Product Brands Used

  • Amana
  • Broan
  • Broan
  • Bryant
  • Carrier
  • Goodman
  • Honeywell
  • Honeywell
  • Lennox International, Inc.
  • RUUD
  • Rheem
  • York
  • Airease.Ducane
  • See All >

Quick Facts

Business Hours
(Please call to confirm)
  • Free Estimates
  • Bilingual


In Business Since: 2005
Memberships & Affiliations
  • Air Conditioning Contractors of America (ACCA)
  • Refrigerant transition and recovery certification ( Universal - Type I, II, and III ) Certification number: 101134771
State Licensing
Trade: Master Restricted
License #: 20446
Expiration: 03-18-2021
Green Certifications
  • ICS Diploma of the course of A/C and refrigeration awarded to Sang Thai since since the 22th of March 1995.
Type: General Liability
Amount: $0
Expiration: 06-05-2020
HomeAdvisor Screened. View Details

HomeAdvisor allows Service Professionals to post information about themselves and their business on their profile. HomeAdvisor does not review or verify the information or representations set forth in those profiles, as they are self-reported by the Service Professional.

HomeAdvisor verifies state-level licensing where applicable - note: some states require local or county level licensing and you should verify whether or not your pro is properly licensed.

Business Overview

How We Got Started

I chose to work in this industry because I like to solve the problems of HVAC technology.

We started in this industry in 1999.

We describe our business as Family owned and operated

Do you love your HVAC jobs

yes,I do.


ST Heating and Cooling

My Work
1 Projects
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HomeAdvisor: The nation's largest network of screened and rated pros.

Ratings & Reviews
ST Heating and Cooling

Real feedback from real homeowners.
Learn more about this pro by reading the ratings and reviews below.
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Showing 1-10 of 135
  Page 1 of 14
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3.0   |  
Told me it would take about 2 hours. Took 5-6. Difficult to communicate with.
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5.0   |  
Very prompt service. Came to my house the same day and finished work quickly.
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5.0   |  
Expected it to cost more, considering how long it took to bring our unit back to life, so we were pleasantly surprised by the value as well as the service.
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4.5   |  
Review by in Sandy Spring, MD
Project: Repair or Service a Central Air Conditioning System
Prompt professional service!
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5.0   |  
Very excellent work on the old dirty convectors in my condo. So much expertise and such a hard worker! I highly recommend.
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5.0   |  
Review by in Laurel, MD
Called immediately after submitting my information to home advisors. Came over an hour later and my thermostat was fixed within the hour. Very efficient and fast.
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5.0   |  
Review by in Bowie, MD
I've already completed a review
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3.5   |  
Cost very expensive, had no choice, needed furnace repired. Coldest day in area.
Response by ST Heating and Cooling: I did not serve your house. Please check the invoice. Your review is the wrong company and correct your rating with the company which served your house.
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4.0   |  
Review by in District Heights, MD
Project: Repair Oil Furnace / Forced Air Heating System
He was a little late arriving for appointment and took his time, but had extreme knowledge and confidence, and got the job done. Price was fair, considering the job.
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4.0   |  
Review by in Hyattsville, MD
Project: Repair a Natural Gas, Propane or Electric Fired Boiler or Radiator Heating System
Slow, but thorough. Time drives the cost of service.
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Showing 1-10 of 135
  Page 1 of 14

Seal of Approval

What is the screening process that Service Professionals go through in order to become members of the HomeAdvisor network?

  1. Verify Trade License
    HomeAdvisor checks to see if the business carries the appropriate state-level license.
  2. Verify Insurance
    As a part of our screening process, we encourage professionals to carry general liability insurance. We require coverage for hundreds of services.
  3. Verification of State Business Filings
    For business types that require a Secretary of State filing, we confirm that the business is in good standing in the state in which it is located.
  4. Criminal Records Search
    HomeAdvisor uses 3rd party data sources to conduct a criminal search for any relevant criminal activity associated with the owner/principal of the business.
  5. Sex Offender Search
    We confirm that the owner/principal is not listed on the official state Sex Offender web site in the state in which the owner/principal of the company is located.
  6. Bankruptcy Search
    We use 3rd party data sources to check the history of the principal/owner of the business for bankruptcy filings by or against them.
  7. Legal Search for Civil Judgments
    We use 3rd party data sources to check the principal/owner of the business for state level civil legal judgments entered against them.
  8. Liens Search
    We use 3rd party data sources to check the principal/owner of the business for liens placed against them.
  9. Identity Verification (SSN)
    HomeAdvisor verifies the social security number(s) of the owner/principal for identity check purposes. This check applies primarily to smaller business entities.
  10. Identity Verification (Reverse Phone Lookup)
    We conduct a reverse business phone lookup to identify records matching the phone number information provided by the business.

NOTE: Member service professional information confirmed as described above may change or expire over time; while HomeAdvisor attempts to maintain accurate and up-to-date information, and confirms changes when notified, we cannot guarantee that profile and screening information is accurate. Therefore, we recommend that before working with a service professional you verify that information presented is still current and/or acceptable to you.
Please see HomeAdvisor's Terms and Conditions for a full description of how we screen Service Professionals

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